00588nam a2200097Ia 450000500170000010000180001724500480003526000090008352003790009258300190047120260716043314.0  aRASKIN, Robin  aAntivirus software : keeping up your guard.  c1993  aDiscusses three missions which a protection system must fulfill if it is to effectively quell the threat posed by computer viruses : it must detect viruses already present on the system, it must remove any virus it detects, and it must prevent any subsequent infections.  Presents the results of tests of 24 antivirus software packages designed primarily for standalone PCs.  c3/7/00kM2LMGR